rjw | 1f88458 | 2022-01-06 17:20:42 +0800 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (c) 2015, The Linux Foundation. All rights reserved. |
| 3 | * |
| 4 | * This software is licensed under the terms of the GNU General Public |
| 5 | * License version 2, as published by the Free Software Foundation, and |
| 6 | * may be copied, distributed, and modified under those terms. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | */ |
| 13 | |
| 14 | #ifndef __QCOM_CLK_ALPHA_PLL_H__ |
| 15 | #define __QCOM_CLK_ALPHA_PLL_H__ |
| 16 | |
| 17 | #include <linux/clk-provider.h> |
| 18 | #include "clk-regmap.h" |
| 19 | |
| 20 | struct pll_vco { |
| 21 | unsigned long min_freq; |
| 22 | unsigned long max_freq; |
| 23 | u32 val; |
| 24 | }; |
| 25 | |
| 26 | /** |
| 27 | * struct clk_alpha_pll - phase locked loop (PLL) |
| 28 | * @offset: base address of registers |
| 29 | * @vco_table: array of VCO settings |
| 30 | * @clkr: regmap clock handle |
| 31 | */ |
| 32 | struct clk_alpha_pll { |
| 33 | u32 offset; |
| 34 | |
| 35 | const struct pll_vco *vco_table; |
| 36 | size_t num_vco; |
| 37 | #define SUPPORTS_OFFLINE_REQ BIT(0) |
| 38 | #define SUPPORTS_16BIT_ALPHA BIT(1) |
| 39 | #define SUPPORTS_FSM_MODE BIT(2) |
| 40 | u8 flags; |
| 41 | |
| 42 | struct clk_regmap clkr; |
| 43 | }; |
| 44 | |
| 45 | /** |
| 46 | * struct clk_alpha_pll_postdiv - phase locked loop (PLL) post-divider |
| 47 | * @offset: base address of registers |
| 48 | * @width: width of post-divider |
| 49 | * @clkr: regmap clock handle |
| 50 | */ |
| 51 | struct clk_alpha_pll_postdiv { |
| 52 | u32 offset; |
| 53 | u8 width; |
| 54 | |
| 55 | struct clk_regmap clkr; |
| 56 | }; |
| 57 | |
| 58 | struct alpha_pll_config { |
| 59 | u32 l; |
| 60 | u32 alpha; |
| 61 | u32 config_ctl_val; |
| 62 | u32 config_ctl_hi_val; |
| 63 | u32 main_output_mask; |
| 64 | u32 aux_output_mask; |
| 65 | u32 aux2_output_mask; |
| 66 | u32 early_output_mask; |
| 67 | u32 pre_div_val; |
| 68 | u32 pre_div_mask; |
| 69 | u32 post_div_val; |
| 70 | u32 post_div_mask; |
| 71 | u32 vco_val; |
| 72 | u32 vco_mask; |
| 73 | }; |
| 74 | |
| 75 | extern const struct clk_ops clk_alpha_pll_ops; |
| 76 | extern const struct clk_ops clk_alpha_pll_hwfsm_ops; |
| 77 | extern const struct clk_ops clk_alpha_pll_postdiv_ops; |
| 78 | |
| 79 | void clk_alpha_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap, |
| 80 | const struct alpha_pll_config *config); |
| 81 | |
| 82 | #endif |